Fuse-adjusting machine.



W. SCHWARTZ. FUSE ADJUSTING MACHINE. APPLICATION FILED MAR. 9, 1908.

Patented Aug. 24, 1909.

2 SHEETS-SHEET 1.

W; SCHWARTZ.

FUSE ADJUSTING MACHINE. APPLICATION FILED MAR. 9, 1908.

2 snnms-snnm 2.

Patented Aug, 24,

WILHELH scnwm'rz, or n'ssmi-o r 'rnn-nunn,

' ,ensmnsenm, or ESSEN-ON-THE-BUHB, enemy.

rAT T OFFICE.

' "STA S GERMANY, ASfiIGNOR TO FRIED.

FUSE-A JUSTIN MACHINE.

- To atl 'whom it may conaem:.'

Be it known that I, W LHnLirSorrwAnTz, asubject of the Emperor of Germany, and

a resident ,of Essen-on-thesRuhr, Germany, 'have nvented certain new and useful Improvements 'in Fuse-Adjusting Machines, of

which the following is a; specification.

The) present invention relates to fuse-ail,

justing machines 'of the type which is pro- .vided with two co-ax-ial and relatively rotatable adjusting members'and a crank journaled in the machine for adjusting the fuse. One. of "the adjusting members of themachine is adapted to be coupled to the adjust.- able part ofthe fuse and the other is adapted to be coupled toa fixed part of the fuse, for instance the, fuse-base. In the 'known fuse'a'djusting machines of this type the adjustnient of the'fuse "is efiected by causing- (one of the adjusting nembers to carry out ,twocomplete revolutions while the other,

' adjusting member remaius stationary'. The ratio of transmission between the, crank which servesfor adjusting the fuse and the adjusting member- Which rotates during the. adjusting operation i s-selected either in'such .a manner that the crank must also carry out- --tw o complete revolutions or in such a' man nr that only-one complete revolution of the; crank -,is" required, The adjusting machinesof the first type have the 'drawba ck that the adjusting "operation takes place compara- 'tively.slowly. In the adjusting machines of :"the second type this drawback fiS removed 3'5" but they have anotherdrawback which is as follows} In these adjusting machinesj the conditions otherwise 'being"equalthe angular .velocity of the adjusting member,

-chines of the first .ty'pe. energy increases as the square of'the angm lar velocity the kinetic 'energy'of the pro ec-' tile body, which rotates'withthe, ad usting.

- member during the. adjusting operation, is

which rotates during the adjusting operation is twice as 'great as in the adjustm mather'efore' four'times as great as in the 'djusti'ng machinesof-the first type. en vthe-projectile body passes into the position i of rest a violent shockf will thdrefore take place which is likely to cause breakage of the driving mechanism of the machine and which has a detrimental influence on the-exactness of the' 1adjustment of. the 'fr'use. i

As the k netic a fuse adjusting machine of the a oresaid type in Wh10h only one revolution of the from the left; Fig. 8 is a si e view of-a burning time fuse "for 'whi'ch -.the embodiment'of-the adjusting machine shown in the drawings isadapted, the; adjacent part of the projectile body being shown inside elevation, and Fig. 9 is a bottom view of Fig. 8, partlyv in section.

justing machine .is adapted to becoupled rotatable'i'composi time fuse shown; i

adjusting member gs.- 8 and 9'; while the base I) ofthe burnin time fuse. For the purpose of coupling th to; the corresponding. parts of 'th'e fus'e' in the 'known' maniier the membersA and C have mounted therein spring pressed latches a antic?- forqwhicli corresponding notches b and d are provided in the rotatable com: position ring B and in thegfuse -base D; The

"nave e of a cone-wheel E through the mediumlof a worm F which en ges with a adjusting member C can be turned in the nave of a conerwheel -G through the me-'. dium' of a'wor'm' H which engages with a; toothed portion c on the member C. The

hollow trunnion 5 (Fig. 4) secured on the cone-wheel G can turn n a bearing-z which islsecured to line 44, Fig. .1, looking from the left;

7 is a section on line 7 7, Fi 4, looking.

The adjusting-member of the fuseia d- 1s adaptedto be coupled f t'o;the fixed part ofv the -fuse, for instance the.

,cone-wheel E is rotatably mountdon a bottom of the ho'jising'J oithe fuse. adjustmore Ami PatentedAug 24 1909.

- The object of this invention is to rovide crank-is required and in which the concussion is not anysgreater than in the adjusting machines with two revolutions of the'crank'.

to the adjustable. part ,of 'the fuse, viz. the

ring B of thevv burning e adjusting members i adjusting .member', A, can be turned in the toothed portion, at? of the mem er 'A. The

two opposite side-wallscof the housing J. .A cone-wheel K, which is of the same m which is under the action of a helical spring m (Fig. 2) The bolt m is provided with a nose m having a surface m (Fig. 3) for which a stop 2' is provided on the hous-v ing J. The spring mi tends to hold the bolt on in such a position that the stop '5 is located in the path of the nose m. The bolt m is further provided with a thumb-piecm m by means of which the bolt can be brought into such a' position that, when the crank is turned, the nose m can move ast the stop i 'When, as shown in the rawings; the nose m abuts with its face m against thestop i the crank M is secured against turning in the direction of the arrow as (Fig. 1).

. The position which the'crank assumes in this instance will in--the following be termed the position of rest. When the crank is turned a complete revolution each of the cone-wheels E and G must also turn 360 and they therefore always assume the same angular position when the crank M is in the position of rest.

a The worm H, which is mounted in the nave g of the cone-wheel G- and-therefore must partake of the rotation of the wheel G, is operated by means of a crank-disk N which is journaled in the housing J in the manner shown in the drawings (see especially Fig. 5). A shaft N, which is of square cross-section and on whichv is slidably but non-rotatably mounted a sleeve P, can be rotated by means of the crank-diskN. The arrangement is selected in such a manner.

- that the axis of rotation of the shaft N and the worm H are located at the same level and at the same vertical distance from the axis of rotation of the cone-wheel (3.. By reason of this-arrangement the axis of rotation of the worm H must coincide with thelaxi-s of rotation of the shaft N when the cone-wheel I G assumes a predetermined angular position and the conditions are selected in such a manner that the two axes coincide when the crank M is in its position of rest. The shaft of the worm H projects to one side outside of the nave g of the cone-wheel G'and terminates in a square .h (Fig. 5) which fits with a slight amount of play'in the sleeve P. The sleeve P is provided with a collar p A releasing lever Q (Fig. 5) is journaled in one of the sidewalls of the housing J through the medium of'a pivot-pin i and is provided with a bifurcated end g 'which embraces the sleeve and abuts against the collar 12. A helical spring-R inserted on the shaft N N releasing lever holds the collar p of the sleeve P in continuous engagement with the bifurcated end 9 of the releasing lever Q. 'By reason of this arrangement each position of the releasing lever Q will corres ond to a predeter- 'm1ned position of the s eeve P. The lever Q is provided with "a nose gfor which a notch g is provided in a flange g on the nave g of the cone-Wheel G. The arrangement isselected in such a ma ner that the nose 9 engages inthe note 9 when the crank M is in the position of rest. There leasing lever Q then assumes such a positionthat thesleeve P to a slight extent engages the square 7L1 of the shaft of the worm H, z

the axis of the worm-shaft, as already stated, coinciding with the axis of the shaft N when the crankMyis in the position of rest. I

The faces of the nose 9 and the walls of the notch g are of such formation that, when the nose 9 rests in the notch the cone-wheel G can only rotate in the direction of the arrow 3 (Fig. 5) and, when the conewheel makes such rotation, the nose g 'can automatically slide out of the notch g When the nose hasleft the notch g the assumes such a position that the sleeve P does not any longer project into the' path along which the square h moves during the rotation of the cone-wheel G. When the crank M is in the position of rest the square h engages'in the sleeve P with so much play that sufiicient space is provided for the relative movement carried out by the square h? while the nose 9 of the releasing lever Q passes out of the notch 9 The amount of playrequired for that 1purpose is, however,

so small that the cran -disk. N is securely within the sleeve P coupled to the worm H in the position of the parts shown in the drawings.

The worm H serves to adjust theadjusting member C to the desired burning length. This adjustment can be read by means of a distance-scale 0 (Fig. 2) and by'means of a mark 2' The scale 0* is arranged on the front face of a flange c on the adjusting member and is visible through a window 2' provided in the cover 6 of the housing J.

The mark z" is arranged on the edge of the window i.

Theworm F, which is mounted in the nave e of the cone-wheel E andctherefore must partake of the rotation of the wheel E,

r is operated by means of a crank-disk S which is journaled in the housing J of the fuseradjusting machine. The means which serve for coupling the crank-disk S to the worm F are identical with the means which serve for coupling the crank-disk N to the worm H.

The worm F serves to adjust corrections of the burning length. The adjustment .which is imparted to the adjusting member A by means-of the worm \F can be read by means-of. a scale i (Fig. 8) and an index hand if. c The scale i is provided ona-plate 2' secured on the cover a ofthe housing J and the index-hand a is positively connected to'the crank-disk S in such a manner that it can slide along the scale i when the crank disk S is rotated. To that end the pivot-- pin of the crank-disk S is provided with a circular row of teeth a which meshes with a pinion t ,The pinion t is secured on a shaft T which is ournaled in thehousing'J and which has its central part provided with screw-threads t The arm-14 isslidably guided-in a slot 11 (Fig; 1'0) in the cover i of the housing and on its upperend it carries the indexhandf In the folldwing description of the manipulation and mode of operation of the improved fuse-adjusting machine it will be assumed that the parts are in the osition shown in the drawings.

first brought into an angular The crank is in its positionof rest and the worms H and F are 'cbupled to their driving members,'viz.

the crank-disks N and S;

The latch al-of the adjusting member G is position relatively to the latch a of the ad usting member A' which corresponds to the desired burning length) To that end the crankdisk N is rotated and throughthe medium 1 of the shaft N and'the cbupling P. it the worm' H which in urn transmits the rotation to the adjusting member 0' with the rotation of the. disk .is transmitted .to the latch b and the flange 0. carryin the scale 1 I c The rotation of the crank-dis N is con- 10 tinued until the division-lineof the scale a,

which corresponds to the desired burning. length, re isters with the mark it. Any correction' oF'the burning length that may be necessary is efi'ected by.turning the'crankdisk S, the rotation of which is transmitted to the worm-F and thence tov the adjusting.

member A with the latch a Through the medium of the the crank-disk is also transmitted to. the

shaft. .Asthe screw-threaded sleeve ,U' is preventedfromturning by-reasonpf the en- .gagement oif it"s arin al in the slot 5 of the cover itherrotation of the -shaft T will i cause the sleeve U, to move axially, this i hand a the scale i which corresponds to the desired movement being partaken of hand u. 'The turning mo v V crank-disk S is continued,until 'theiindexregisters with j the division-line of correction of) theburning 1 lengthl' The latches a and c then havean angular [distance from each other which corresponds to the desired position of tire fuse.

In order to adjustthe'lfuse the operator.

On the threaded portion of the shaft T is mounted a screw-threaded sleeve U which is provided with an' arm u? gearing s t the rotation of byjthe indexment of the back into the recesses provided for them in operator grasps the handle m of the crank piece m? with the thumb o the same hand he draws the bolt m back against the action of the spring m until the nose m-* is, out of contact with the sto i and he then rotates the crank one comp ete revolution. Immestarted the o erator again lets go his hold on the'thum -piece 'mfi'and the sprm m} forces the. bolt m back into its origina position. Through the medium -0'1? the conewheel' K the rotation of the crank M is wheel G rotating in the direction of the arrow 3 '(Fig. 5) and thewheel E rotating in the opposite direction; At the commencement 0 the lever Q to turn in the direction of the arrow 2- (Fig. end 9 of the e shaft 1N against the" action-ofthe' spring R and-to such an extent thatuthe square 12.

to partake of the furtherturning movement of the cone-wheel G. The, worm'F is:un-

manner at the commencement-of the turnjusting members A and C. also partake of wheels by the worms F-and H. The proiectile-atfii'st remains stationary while the a o reaches the corresponding notch in the adjusting member appertaining to the notch is then coupled to the corresponding part of the fuse and carries such part along during its rotation. As. ontheone hand the 'fusebasejD' is rigidly connected with the protatable composition 'rin can only. rotate with comparative ty the. entire pro- .takes hold ofthel'baselofthe projectile or cartridgeand inserts the fuse in the adjustin the following-ex lanation of the mode of operation'the latces a and 0 are forced M with one hand and enga g the thumb-- diately'after the rotation of the crank is,

transmitted to the cone-wheels E and G,- the 5) .wherebythe bifurcated ver shifts the sleeve P on the becomes released. Theworm His then free ing movement of-the cone-wheel. E: The adfuse theijlatch snaps into the notch and the jectile-body and on the other hand the rothe adjusting members A and C. .Aft er'the fuse is inserted in the adjusting machinethe the 'turning lmovement of the conewheel G the nose q ofthe releasing lever Q, slides out of the notch 7* which causes coupled from the-'crank-disk Sin asimilar the turning movement of the cone wheels E and G' as they are coupled to" the cone atches a and 0 slide along the outer faces of the rotatable i composition ringflB and .fus'e-base D. Assoon as one of the latches "ectile will generally partake of the rotation of the aforesaid fuse-part. As the projectdletogether with the adjusting member which already hasjits latch in engagement with the corresp ding notch now rotates in the direction opposite to that of the other latch the latter will soon come into engagement with the corresponding notch in the' fuse and the adjustment of the rotatable composition ring then commences, 'The coupling of the adjusting members A and G with the rotatable composition ring B and the fuse-base D is also effected with ab solute certainty if it should happen that the composition ring Brotates so'easily that it M has made a complete revolution, that-is when it has once more reached its position of rest,,the face m) of the nose an hits the stop 2' and holds the crank in the position of rest. Simultaneously herewith the nose 9 of. the releasing lever Q snaps into thenotch g and the spring Rccauses the sleeve, P to slide over thesquare h of the shaft of the worm H. The coupling of/the worm F with the crank-disk S takes place in a similar manner. All the parts of the adjusting machinelare now once more in their original position and the latches a and 0 especially,

have the same angular distance from one another as prior to the commencement of the turning movement of the crank As both latches a c are in engagement with the corresponding notches b d of the fuse the notches have also the same angular distance from each other, that is the fuse is adjusted to the desired burning length.

It is apparent that the desired adjustment will also be imparted to the fuse in case the fuse is inserted in the adjusting members A Gin such a manner that one of thelatches a c snaps lntothe corresponding notch in .the fuse or in case both of the latches snap into theirnotches.

When the desired adjustment has been imparted to the fuse the projectile is removed from the adjusting machine and while this is being done the latches a 0 pass automatically out of engagement with the notches b 4 in" the known manner.

- Having thus described the invention, what is claimed and desired to be secured by Let-v ters Patent is: I j I 1. A fuse adjusting machine comprising a As however the latch gearing,

pair of ,co-aiiial and relatively rotatable adjusting members, and a singlc means for rotating the adjusting members simultaneously and in opposite directions to adjust the fuse.

2. A fuse adjusting machine comprising a pair of co-aXial and relatively rotatable adjusting members, one of the members carrying means for engaging a rotatable part of.

the fuse and the ot ier carryingmeans for engaging a relatively fixed part'of the fuse;

and single means for imparting rotary movement to the member's simultaneously and in opposite directions to adjust the fuse.-

3. A fuse adjusting machinecomprising a pair of co-axial and relatively rotatable adusting' members, an operat ng crank, and a connection between each of the members and the crank whereby the adjusting members are rotated in opposite directions when the crank is turned to adj ustthe fuse.

4. A fuse adjusting" machine comprising a .pair of co-axial and relatively rotatable adjusting members, an operating crank, a connectlon between each of the members and the crank whereby the ad usting members are rotated in opposite directions when the crank is turned to adjust the fuse, a selflockmg gearlng 1n the conneet1on between the crank and oneof the adjusting members,-

and r neans for operating said gearing to vary the initial angular position of said last-named member relatively to the other .member. I

I 5. A fuse ad usting machine comprising a pair of co -aX1al and relatively rotatable adan operating crank, a conjusting members, j

of the members and nection between 'each the crank whereby the adjusting members are rotated in opposite directions when the crank is turned to adjust the fuse, a selflocking gearing in each of said connections,

and means for operating said gearings independently of each other to -vary the initialangular position of one adjusting member relatively to the other member.

6. A fuse a djustlng mach ne comprising a pair of co-axial and relatively rotatable adjusting members, an operating crank, a connection between each of the members and 1e crank whereby the adjusting members are rotated in opposite directions when the crank is turned to adjust'the fuse, a selflooking gearing in one of said connections whereby one'of themembers may be rotated to vary the initial position of the members, a member for operating the self-locking meansnormally coupling said operating member to said gearing, and means releasing said coupling means when the crank is turnedto adjust-the fuse.

7. In a fuse-adjusting machine, thecombination with a pair of co-aXial adjusting members rotatable relatively to each other,

an operating crank, and a connection between each of the members and the crank wherebyto rotate the adjusting members in opposite directions when the crank is turned of a selfilocking gearing in the connection between the crank and one of the ad ust1ng members; means for operatlng sa d gearm to vary the initial angular position'of' said last-named member relatively to the other .10 member; and means driven by said selflocking gearing whereby the initial angular adjustment is indicated. Y

The fore oing specification signed at Dusseldorf, aermany, this 9th day of J anuary, 1908.

WILHELM SCHWARTZ. In presence of CARL GRUNWALD, WI BI LM FLAscHE. 

